Mold and liner for linotype machines



Nov. 19, 1929. E. w. JOHNSON v MOLD AND.LINER 'FOR LINOT YPE MACHINES 2 Sheets-Sheet 1 Filed July 25, 1927 171 -5 O-L-Lorne Patented Nov. 19, 1929 UNITED STATES PATENT OFFICE ERIK W. JOHNSON, OF CHICAGO, ILLINOIS, 'ASSIGNOR OF ONE-HALF TO LEON A.

KAMRADI, OF CHICAGO, ILLINOIS MOLD AND LINER FOR LINOIYPE MACHINES Application filed July 23,

My invention relates to improvements in molds for linotype machines, and has for its principal object the production of a mold of the type indicated whereby a more perfect slug is produced.

Another object of my invention is to produce a mold and liner having means to produce a clear, well defined border in printing.

Another object of my invention is to prevent what is termed overhang in the finished slug, which hitherto has been a common defect in the printing art.

A further object of my invention is to produce a combined cap and liner constituting a single unit.

Uther objects and advantages of the method and construction, herein employed, will appear more fully in the hereinafter spec1fication when taken in connection with the accompanying drawing in which Figure 1 is a front view of my invention. with a mold block omitted.

Figure 2 is an inverted front View Of a modified form of my invention.

Figure 3 is an elevational view of the combined cap and liner, showing the slug forming face of the liner.

Figure 4 is a cross section taken on line l4 of l igure 1, with a mold block, shown in cross section, applied thereto.

Figure 5 is a fragmentar section of a slug produced by my invention.

Referring more particularlv to the drawing wherein similar characters of reference ap- 3; ply to like parts in the several figures,

11, the combined cap and liner being adapted to be ap lied to a mold body 12 having the is a guiding prongs 13 between which the cap 4 and liner is operatively situated. A matrix block JA- having a recess 16 is adapted to accommodate an insertible face element 15, having a sloping ledge 17. IVhen the block 14-v is applied to the mold body 12 and the cap and liner 10 and 11, in the manner shown in Figure 4, upon the forcing of molten metal into the recess 18, a slug 19 having a sloping or bevelled edge 19 to conform to sloping ledge 17 will be formed. The sloping ledge 17 forms an important feature of the present incan havin an integrally formed liner 1927. Serial No. 207,880.

vention, since by means of it I obviate the overhang produced by conventional molds having cavities to form central lines on the edges of the slugs formed, whereas the slug produced by my invention has a slope or bevel lying between two of its opposite faces. The liner has the toe 20 for the purpose of forming a corresponding notch 21 in the slug, whereby the type composition metal is prevented from drawing away from the cooperating parts while the slug is cooling.

I-Ieretofore in the preparation of slugs for linotype machines, there has been considerable difliculty experienced by the formation of what is termed overhang upon the printing edge of the slug, due toinaccuracies between the mold body and the liner, and particularly occurring at the printing edge of ti e slugs heretofore used, the printing edge hitherto being formed at the center of one of the edges of the slug and not, as shown in m slug illustrated in Fig. 5, by the prolongation of one of the faces of the slug, the opposite face having a bevel 19. By the method herein illustrated and described I have succeeded not only in overcoming this defect so prevalent in the printing art, but I have also been able to save a great deal of time and labor by combining the cap and liner into one unit. It will be understood, of course, that the overhang has existed in those slug." designed to form borders and hair lines, and it is with particular reference to this feature that I have directed one of the objects of my invention.

The combined cap and liner forming a part of mv invention can be attached to any of the so-called'universal molds used in this art;

lVhile I have chosen to illustrate the form of construction of my invention-by the herein drawings and explanations of same, it is to be understood that changes in the embodiment of my invention can be made within the scope of what is claimed without departing from the spirit thereoef, or sacrificing any of its advantages; hence I desire to eniphasize the fact that various minor changes in details of construction, proportion, and arrangement of parts may be resorted to when required.

What I claim as new and desire to secure by Letters Patent is:

1. In a mold for a linotype machine, in combination, an integrally-formed cap and liner, a mold body and a coacting quad block having an insertable element contacting with said cap and liner and said mold body, said element being recessed and configured on the face thereof at a point opposite a-recess lying between said cap and liner and said mold body when joined together, whereby molten metal within said recess will be con figured by said element to form a slug having a printing edge, said printing edge being provided by a prolongation of one of the sides of the slug, there being a bevelled surface lying between said side and an opposing other side of said slug.

2. In a mold for a linotype machine, in'

combination, an integrally formed cap and liner, a mold body and a coacting quad block having an insertable element coacting with said cap and liner and said mold body, said liner having thickened ends witn retaining notches, said thickened ends being provided with projections, said element being recessed and configured on the face thereof at a point opposite a recess lying between said cap and liner and said mold body when joined together, whereby molten metal within said recess will be configured by said element to form a slug having a printing edge, said printing edge being provided by a prolongation of one of the sides of the slug, there beinga bevelled surface lying between said side and an opposingother side of said slug. 3. In a mold for a linotype machine, in combination, an integrally formed cap and liner, a mold body and a coacting quad block having an insertable elementcontacting with said cap and liner, said liner having toes producing notches in slugs formed by coaction with said liner, said element being recessed and configured on the face thereof at a point opposite a recess lying between said cap and liner and said mold body when joined together, whereby molten metal within said recess will be configured by said element to form a slug having printing edge, said printing edge being provided by a prolongation of one of the sides of the slug, there being a bevelled surface lying between said side and an opposing other side of said slug.

In testimony whereof I have signed my name to this specification.

ERIK N. JOHNSON. 

